MCCI Model 3421 Users Guide

MCCI Model 3421 Users Guide

The MCCI® Model 3421 is a USB-to-HDMI converter device that runs with Basic Display Protocol (BDP) developed based on the USB/VESA joint specification.

The MCCI Model 3421 has a USB micro-B port for control, a Type C port & a Micro HDMI port to act as a USB to HDMI converter device. Use of the control port is optional. If left open, the 3421 will get power from the Type C port. If a charger is attached to the control port, the 3421 will get power from the control port and will operate as a self-powered device on the Type C port. If a USB cable is connected between a PC and the micro-B port, the 3421 will present an FTDI serial port to the PC. You can use this port to read the Device Information of the 3421 device.

Please download the user manual from the attachment and refer.

The MCCI Model 3421 can operate as a BDP device, extending the primary display to a secondary display using USB to HDMI conversion.

When operating as a BDP device, the Model 3421 device needs signed Windows drivers when connected via a Type-C port. 
  • BDP driver can be availed from Microsoft/Synaptics, please contact MCCI to get one.

Update 2024-09-02 22:30 IST

Attached the updated Model 3421 Users Guide document (950001641) Rev B and Model 3421 DFU update package.

Update 2023-12-21 01:06 IST

Attached the Model 3421 Users Guide document (950001641).



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